/*
 * Copyright (c) 2006, Benedikt Sauter <sauter@empronix.com>
 * All rights reserved.
 *
 * Short descripton of file:
 *
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the following 
 *     disclaimer in the documentation and/or other materials provided 
 *     with the distribution.
 *   * Neither the name of the FH Augsburg nor the names of its 
 *     contributors may be used to endorse or promote products derived 
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdlib.h>
#include <stdint.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <inttypes.h>

#include "main.h"
#include "common.h"
#include "protocol.h"

static void common_hwdesc (void)
{
	answer[ 0] = CMD_GET_HW_ID;
	answer[ 1] = RSP_OK;
	answer[ 2] = 10;
	answer[ 3] = 'o';
	answer[ 4] = 'c';
	answer[ 5] = 't';
	answer[ 6] = 'o';
	answer[ 7] = 'p';
	answer[ 8] = 'u';
	answer[ 9] = 's';
	answer[10] = '_';
	answer[11] = '0';
	answer[12] = '1';
	answer[13] = 0x00;
	CommandAnswer (14);
}


void common_latency_timer_init (void)
{
	// disabled until common_scheduler() is doing something ...
#if 0

#if defined (__AVR_ATmega128__)
	// us = 256 - x/2
	octopus.latency_timer = 206;	// 255 = 2us, 254 = 4us ...
	TIMSK = (1 << TOIE0);			/* enable TCNT0 overflow */
	TCNT0 = octopus.latency_timer;	/* TCNT0 Timer auf 50ms einstellen */
	TCCR0 = 3;						/* count with cpu clock/32 */
#elif defined (__AVR_AT90CAN128__)
	// us = 256 - x/2
	octopus.latency_timer = 206;	// 255 = 2us, 254 = 4us ...
	TIMSK0 = (1 << TOIE0);			/* enable TCNT0 overflow */
	TCNT0  = octopus.latency_timer;	/* TCNT0 Timer auf 50ms einstellen */
	TCCR0A = 3;						/* count with cpu clock/32 */
#else
#error "timer init for this processor is missing"
#endif

#endif
}

void common_scheduler (void)
{
}

void common_scheduler_add (int id, void (*userFunc) (void))
{
}

void common_init (void)
{
}

void common_parser (const uint8_t *buf)
{
	switch (buf[0])
	{
	case CMD_GET_HW_ID:
		common_hwdesc ();
		break;
	default:
		;
	}
}
